Dense urban neighborhoods are the ones propping up the single family neighborhoods, not the other way around. The infrastructure costs per taxpayer are way higher in low density neighborhoods. All those extra roads, sewage lines, water lines, power lines, street lights, etc. add up. The single family homes are the leeches not paying their fair share.
You'll get to test your hypothesis that middle class families are the real problem with urban life when they quietly ghost on urban zones subjected to these cool ideas of yours.
Lots of middle class families (to say nothing of the extremely wealthy, who also often live in dense city centers) live in apartments and condominiums lol. It's the single family homes that are the problem. They are wildly inefficient in terms of land use.
